Chien-Ching Hung M.D., Ph.D. is currently a Clinical Professor of Medicine at the National Taiwan University College of Medicine, Taipei, Taiwan. Dr. Hung received his medical degree from the National Taiwan University College of Medicine in 1989. After an internship in the Department of Internal Medicine, National Taiwan University Hospital, he completed a residency in Department of Internal Medicine at the National Taiwan University Hospital. This was followed by a fellowship in Division of Infectious Diseases at the National Taiwan University Hospital. He subsequently obtained master degree of international health at the Swiss Tropical and Public Health Institute, Basel, Switzerland in 2006, followed by PhD degree of Graduate Institute of Medical Sciences, University of Antwerp, Antwerp, Belgium in 2009. His research interests include clinical management of HIV-related opportunistic infections, amoebiasis, sexually transmitted infections, and viral hepatitis coinfections. He has served on the editorial boards of the Journal of Microbiology, Immunology, and Infection and World Journal of Gastroenterology. Dr. Hung is a member of the Taiwan Infectious Diseases Society and Taiwan AIDS Society and leads Taiwan HIV Study Group. He has authored more than 300 articles in several peer-reviewed journals and, in the past several years, served as a reviewer for Clin Infect Dis, J Infect Dis, PLoS One, BMC Microbiol, BMC Infect Dis, BMC Pub Health, Int J Infect Dis, Int J Tuberc Lung Dis, Int J STD AIDS, Cochrane Review, Public Health, Clin HIV Res, J Infect, Vaccine, and HIV Med.